Air-valve for internal-combustion engines.



W. AIRD.

AIR VALVE FOR INTERNAL COMBUSTION ENGINES.

APPLICATION FILED NOV. 15. 1915- 1 204,1 10.

Patented Nov. 7, 1916.

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WILLIAM AIRD, F BARBIE, ONTARIO, CANADA.

AIR-VALVE FOR INTERNAL-COMBUSTION ENGINES.

Specification of Letters Patent.

Patented Nov. 191.6.

Application filed November 15, 1915. Serial No. 61,588.

To (4Z2 whom it may concern:

Be it known that I, lVILLIAM Am), a subject of the King of Great Britain, and resident of the town of Barrie, county of Simcoe, Province of Ontario, in the Dominion of Canada, have invented certain new and useful Improvements 1n Air-Valves for Internal-Combustion Engines, of which the following is a specification.

The invention relates to improvements in air valves for internal combustion engines and the like as described in the present specification and illustrated in the accompanying drawings that form part of the same.

The invention consists essentially of the novel construction and arrangement of parts whereby a supply of air is admitted to the gas mixture through a valve in the inlet manifold and in the novel means for op erating said valve for regulating the said air supply. 7

The objects of the invention are to facilitate the combustion of the gas, to economize in the consumption of fuel, to increase the efiiciency of internal combustion engines in general and generally to provide an air valve which will be simple to operate, inexpensive to manufacture durable and eilicient.

In the drawings Figure 1 is a sectional view through the device. Fig. 2 is a view of the valve and connecting nipple. Fig. 3 is a sectional view on the line AA of Fig. 2. Fig. 4; is a plan view of a portion of the inlet manifold showing the device attached thereto. Fig. 5 is a side elevation of a portion of inlet manifold showing the device. attached thereto. Fig. 6 is a plan view of the regulating or operating CllSk.

Like numerals of reference indicate corresponding parts in each figure.

Referring to the drawings 1 is a T-shaped pipe having the closed end2 and the internally threaded open ends 3 and 4.

5 is an exteriorly threaded tube adapted to engage the threaded opening 4 of the pipe 1 for a portion of its length and at its other end adapted to be inserted in a correspond- .ingly threaded opening in the inlet manifold 6 thus forming anair passage from the end 3 of the pipe 1 to the interior of the said inlet manifold.

7 is an exteriorly threaded tube adapted to be inserted in the internally threaded end 3 of the pipe 1 and having through one side thereof the longitudinal air slot 8 and through the other side thereof the longitudinal, air slot 9, said air slots 8 and 9 being oppositely disposed in relation to the ends of the said tube to facilitate the regulating of the supply of air to the inlet manifold.

10 is an operating rod rigidly secured at its lower end to the outer end of the tube 7 and extending upwardly through the dash board of the vehicle and having adjacent to its lower end the shoulder 11 adapted to abut the end 3 of the pipe 1 when the tube 7 is screwed tightly into said pipe so that it will be impossible for any air to enter said pipe through the end 3.

12 is a substantially disk-shaped head secured to the upper end of the operating rod 10 by the set screw 1-3 to facilitate the turning of said rod.

l/Vhen it is desirable to admit air to the inlet manifold it is only necessary to turn the disk 12 which has the effect of drawing the tube 7 upwardly in the pipe 1 and allowing the air to flow in through the air slot 8. If it be found that the amount ofair entering through the slot 8 is not sutficient a greater quantity can be admitted by simply turning the disk 1 a sufficient distance to allow the air to enter through the slot 9 also.

It will be seen from the drawings and from the foregoing description that a very simple means is afl'orded for regulating the supply of air to the engine and by admitting this regulated supply of air to the mixture the combustion of the fuel is greatly facilitated thus increasing the efficiency of the engine.

What I claim is r 1. In an air valve for internal combustion engines and the like, an inlet manifold, an exteriorly threaded tube secured in said manifold and projecting therefrom, a substantially T-shaped pipe having one arm screw threaded to said tube and having another of its arms closed, a tubular valve screw threaded into the opening in the other arm of said pipe, air openings in said valve oppositely disposed in relation to one another and in relation to the ends of said valve, an operating rod rigidly secured to the outer end of said valve, a shoulder on the inner end of said rod adapted to abut the end of said pipe when the said valve is screwed tightly thereinto and a disk on the outer end. of said rod for operating said valve.

2. The combination With a manifold pipe of a T pipe having one arm thereof closed,

and for movement out of the T pipe When the valve is rotated in the opposite direc-V 1 tion, a stem upon said valve, a handle attached to the stem, and retaining means upon the handle for shovving'the position of the valve.

Signed at Vancouver B. (3., this 14th day 29 of September, 1915.

WILLIAM AIRD.

Witnesses r E. S. JoHNsoN, M. L. RANEY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents Washington, I). C. 

